Rotary dump



Sept. 25, 1928;

E; RAMSAY ROTARY DUMP FiledJune '2. 192? 2 Sheets-Sheet 1 Erskine Ramsay Sept. 25, 1928.

E. RAMBAY ROTARY DUIP Filed June 1927 -2 Sheets-Sheet '2 Erskine kamsgy I the level dump with a.

Patented Sept. 25, 1928.

na reo st rs ERSKINE 'RAMSAY, or BIRMINGHAM, ALABAMA.

ROTARY DUMP;

Application filed June 7,

ject is to provide a simple and effective means ,for holding the dump against endwise displacement as it rotates. Heretofore, the end thrust of the dump has been taken by rollers or other thrust bearings which engage one or more of the riding rings or other parts of the dump,but it is obviously desirable to avoid the use of the same penseand-main'tenance if a more effective and yet less expensive means can be provided for fully taking care of the end thrust of the dump. Myinvention provides such a means in that the. endwise thrust of the dump is taken care'of "by the provision of a'thrust member connected to either or both ends of a level dump and preferably to the high end of an inclined dump, which member is adapted to follow the rotation of the dump and hold it so thatit will ride without displacement and always in correct position on its ridingvrings or other supports.

his a further feature of my invention'tha-t this swinging thrust member for the dump shall be connected to the dump frame preterably at a point as nearas practicalto its ELXIS and that it' sh all connect to a stationary mounting at a point substantially in line with the axis of the dump, but the thrust member may be of multiple construction and may connect at one or more points to the dump. It is a further obj ect that the connection of a single thrust member shall be madesuiiiciently ofi center of the dump so that it will in swingin with the dump clearthe haulage cable for the mine cars in the dump where such is used for hauling the cars.-

It is a further object of my invention to rovide the'thrust member or members for depressible mounting capable of being dropped so that mine cars can pass over it as they approach'or leave the dump.

My invention further contemplates the de signing of-thestationary mounting for the thrustmember to serve as a bumper to protect the'haulage means in case of overwinding. 7

My invention also comprises tails of construction and arrangements of pa'rts,'whicl1, in their preferred embodiments on account of both exneans.

the novel de- 1927. Serial no. 197;053.

only, are illustrated in the accompanying drawings, which form a part of this specification, and in which Fig. 1 is a plan view showing an inclined dump with the dump cage broken type of away and the mine car omitted, a flexible thrust member being here employed which is attached to a rigid bumper mounting. {I

Fig. 2 is a vertical cross-sectional view taken on the line IIII of Fig. 1, showing the dump mounting inside elevation.

1 Fig. 3 is a view corresponding to Fig. 2 ota level dump with a modified rigid thrust meinher having a depressible mounting, the car being shown with a conventional haulage Big. 4 is an endview of Fig. 3" taken on the line IV-IV-of Fig. 3, and omitting the mounting elements for the thrust member.

Fig. 5 is a diagrammatic view showing a pair of thrust'mcmbers connected site sides of the dump.

Similar-reference numerals refer to similar parts throughout the drawings. In the embodiment of my invention illustrated in Fig. 1, I have shown a conventional type of rotary dump but it is to be understood that my'invention is available for use with any typeof dump which'rotate's about a fixed long axis; The dump shown is provided with riding rings 5, whichturn upon roller supports 6 mounted on tracks 7. mechanism illustrated forms present invention and is intended merely to illustrate one method oi supporting the-dump for rotation about its long axis. The dump comprises a number of riding. rings which The roller no part of my are cross braced and connected by the mem lJQIS'S, 9, and 10, and the i'iding'rings "have cross braces 11 upon which tracks 12 are mounted to receivcthe wheels 13 of mine cars 14. i he dump tracks 12 are adapted to align with stationary approach tracks. 15, which "7 and in 'Fig; 3 are level p in Fig. 1 are inclined or substantially so. A suitable'clip 16 is attached, slightly off center on the cross support 11 for the tracks, and this clip is attached to a chain 17 which extends at an up- 19 rigidly V l by frames 20 which have their bases 21 rigidly attached to snitabie toundaticns or supports 'ward inclinationfto an adjustable U-bolt fastening 18 which is mounted in across channel 1 braced and supported at eachend V 1 22. This serves as a bumper to prevent over- Winding damaging the haulage means. It

will be observed that the point of connection of the chain 17 t0 the U-bolt 18 is substantially in line with the projected axis of rotation of the dump and the clip 16 is slightlyofi center toprevent it coming into contact with the haulage rope as the dump rotates.

i In operation,-the chain will follow the rotation of the dump defining a cone surface in its movement and will at all times freely and positively resist endwise thrust of the dump and hold it in true position on its roller supports. Thus, this simple and inexpensive appliance will dispense with all thrust and roller bearings together with their expensive bracingand supports and will eliminate any Wear: therefrom on the riding rings. V

In Figs. 3 and a I illustrate a modification of the invention showing here in place of the chain 17, a rod 23 which is connected by a bolt '24 oil center to the cross member 11 and which at its other-Mend is provided with a ball or equivalent universal joint member 25 which is received in a ballsocketQG carried by an arm 27 pivotally connected at 28 to-a clip 29 bolted to a cross channel30 anchored in V i the track. The arm 27 has a perforated lug or car 31;which is connected by a link 32 to thepiston rod 33of a piston 34, which piston wor s in a cylinder 35connected at its opposite ends by pipes 36 and 37 to a four-way valve 38 having an inlet connection 39 and an exhaust40l The car in this construction is shown with the usual chain connection 41 by meansof which it is connected to a haulage cable or rope 42 which leads to the haulage drum or sheave 43..

1 By reference to Fig 4, it will be noted that the dotted lines indicate the travel of the free end of the rod 23 and of the cable 42, showing :that these will not interfere during the partial rotation of the dump. When desired to bring cars into the dump from both ends or to move the trip on through the dump it will be necessary to drop the support for the rod 23 to clear the cars and under such conditions ,thevalve 38 is shifted to'apply power above jth'episton 34 and to exhaust it from below,

thereby drawing the arm 27 downwardly to a level which will permit the cars to pass' 'freely over it. Obviously, the same type of 1 depressible mounting can be used in connec- I i tion with thechain 17 in Fig. 1 or the rigid rod and its universal joint may be usedin place of the chain, This rod 23 will function exactly like the chain 17 to freely follow the rotation of the dump while overcoming the endwise thrust thereon and holding it in correct riding position on the rollers 6. It is also obvious that this rodmay act in tensionor compression, thus permitting it to be placed at the desired end or ends ofa dump..

In Fig. 5 Igshow a pair of thrust members 441ml 45 which are connected tOOPPOSltG sides of the dump and which have, preferably,

Having thus described my invention, what I claimas new and-desire to secure by Letters Patent, is Y 1. The combination with a rotary. dump adapted to turn about a longitudinal fixed axis, of means to overcome endwise movement of the dump,compris'ing a mounting spaced from and in line with the dump,-and swinging connecting means between saidmounting and dump, the point of attachment of said con necting means to its mounting being adjacent to, the projected axis'of rotation of the dump.

2. A dump mechanism accordingto claim 1, in which the connecting means is inclined downwardly from its mounting and attached to'the dump adjacent to the track level there- 1n. v

3. A dump mechanism'according to claim 1, in'which the point'of attachment of the connecting means to the dump is slightly off center on the down going side of the dump as it moves to rotate.

, 4. A dump mechanism according to claim to swivel to permit it to freely follow the rotating movements of the dump.

5. A dump 1nechanism.,acc0rding to claim 1, in combination with means to depress the 'mounting to permit cars to pass itin appreaching or leaving the dump, v

6. The combination with a dump adapted to rotate about a longitudinal fixed axis, ofa mounting rising substantially to a level with the projectedaxis of rotation of the dump, a connection swivelled to said mounting substantially inlinewith said axis, a cross mom-- her in the dump adjacent to the track level therein, and means to attach said connection substantially ccntrally to said element.

7 The combination with a' dump adapted to rotate about a longitudinal fixed axis, of a mounting rising substantially to a'level with the projected axis of rotation of 'the'dump,

a connection swivelled to said mounting s ub- V stantially in line with sa1d axis and connected 2 V to the dump,its connection at its mounting being below the line of travel of a haulage cable leading to cars in the dump, audits point of attachment to said dumpbeing disposed off 7 goingside of the dump' as it moves.

In testimony whereof I I ERSKINE RAM A1, 7

center onthe down afiix my si nature. 1 

